Hoisting-engine control.



l. ILIEFF.

HOISTING ENGINE CONTROL. APPLxcATloN FILED APR.1|.1918.

l,288,597 Patented Dec. 24, 1918.

S'SHEETS--SHEET I. ILIEFF.

HOISTING ENGINE CONTROL. APPLICATION FILED APILII. IsIs.

Patented Dec. 24, 1918.

3 SHEETS-SHEET 2.

attofmuaoo l. ILEFF. HOISTING ENGINE CONTROL.

APPLICATION FILED APR.1\.19\B'.

Patented Dec. 24, 1918.

3 SHEETS-SHEET 3.

Chmmnaa@ United sans, resida ILION ILIEFF, F WASHINGTON, DISTRICT 0F COLUMIVBIA.

HOISTINGsENGINE CONTROL.

To all whom. t may concern:

' Be it known that I, ILIoN ILIEFF, a subject of the King of Bulgaria, a citizen of the at Washington, in 'the District of Colum ia, have invented a new andusefulzmprovement'in Hoisting- -I io brake and frictionactuatin Engine Controls, of which the following isa specication. v

The subject of this invention is a control for hoisting engines and like structures, and the main object of the invention is to provide means for throwing the drum of suchv engines in and out of gear. I

A still further object of the invention is the provision of means for controlling the power transmitted b the drum.

It is also with-in t ie contemplation of the.

invention to generally improve the construction and enhance the utility of a control for hoisting engines.

WithV the foregoing and'other objectsin view which will appear as. thedescription proceeds, the invention resides in the combination and arrangementI of parts and in the details of construction hereina er described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made Wit-hin the scope of what is claimed without departing from the spirit of the invention.

A practical embodiment of the invention is shown in the accompanying drawings, wherein Figure 1' is a plan view of a 'control constructed 1n accordance with the invention, portions being in section;

Fig. 2 is a view in side elevation of the A same;

Fig. 3 is a detail sectional view taken on the line 3--3 of Fig. 1;

Fig. 4 is a similar view taken on the line Fig. 5 is a sectional view taken on the line 5 5 of Fig. e;

Fig. 6 is a detail view in side elevation of 4the hoisting drum and friction control, the

shaft.

Specication of Letters Patent.

Patenten nee. 2a, isis.

Implicationl led April 11, 191.8. Serial .'io. 227,968.

Referring to the drawings -by numerals of reference .In carrying out the invention there is' -provided a base frame 10, which'may be of any preferred form, though herein shown as rec tangular, and constructed of anyY suitable material, and this frame may be mounted on runners, not shown, when the engine -is to be used in logging operations.

Ahorizontally -disposed drive shaft 11 eX: tends transversely of the frame 10, and is journaled in suitable journaling blocks 12 secured to the longitudinal bars of the frame. A collar 13 is integral with or rigid on the shaft 11 within the frame 10, and this collar is rovided with an annular groove into which projects the end of a set screw 14 which is threaded throughs. sleeve 15, which sleeve encircles and is spaced from the shaft 11 with one end encirclin the collar 13.

The sleeve 15 is'provi ed with apertures v16,'.spaced circumferentially thereof, for the reception of the'end of a rod or like implement by which the sleeve might be rotated. The sleeve 15 is interiorly threaded to receive the threaded hub 17, which is integral with and extends to one'side'of a pinion 18. Integr and these pinions and the hub 17 are mountof the key or feather 20, by which they are locked lagainst rotation with respect to the shaft.

The drive shaft 11 -is connected or geared in the usual mannerto the engine (not shown) or other source of power, by which it is rotated. lThe pinion 18 meshes with a spur gear 21- which is rigid on a shaft 22, which shaft is horizontally arranged and extends transversely of the frame 10, and the shaft is journaled in suitable journaling blocks secured on the frame.

Loose on the shaft 22, within the frame 10, and adjacentthe spur gear 21, is a drum 23, on one end of which is formed a brake drum'24, which brake drumv` is contacted by a brake band 25. The brake band 25 has oneV end anchored to the frame 10, or other suitable stationary' part, as at 26, while to the other end is secured an angled lug 25. The lug 25 'is apertured to receive one end of an eye bolt 27 on which a-nut is threaded. against the lug 25 for the purpose of adal with, andpositioned at the other -side of the pinion 18 is a smaller pinion 19,

justingthe band 25. The eye end of the bolt 27 is clamped in an eccentric or cam strap 28 which encircles a cam 29, which cam is rigid on a camshaft 30. The cam shaft 30 is horizontally arranged and extends transversely of the frame 10, and is journaled in bearings secured on the frame 10.

Loose on the shaft 22, and confined between a side bar of the frame 10 and the outer end of the drum 23, is a pair of disks 31, the opposed faces of which are beveled to converge toward the centers of the disks,

in one direction, to separate the disks 31.

The yoke 33 is formed with an integral arm or stem 32 which is 'apertured to receive, with a close sliding it, a cam 35 which is rigid on the shaft 30. The yoke 33 and its stem 32 may be made in two sections which are clamped together by` bolts 36 or otherwise, for convemence in mounting the yoke in place.

. It is to be noted that the cam 35 and the cam 29 are set opposite so that, when the shaft 30 is rocked to draw the yoke 33 and force the rollers or disks 34 between the disks 31, the cam 29 will be moved in a direction to release the brake band 25. Forcing the disks 34 between the disks 31, will separate the disks 31 and force the drum 23 against the face or side of the spur gear wheel 21 and, by frictional contact, cause the two to rotate-in unison.

One end of the shaft 22 is extended beyond the frame 10 and a rockable member 37 is loosely mounted on this end of the shaft. The rockable member 37 has 'integral vside walls which are connected by radially disposed webs 48. This rockable membery may be encircled by a packing rim 38 for the purpose of preventing the escape of steam or other pressure fiuid. A casing 39, which is secured to or positioned beside the frame 10, houses the rockable member, and formed on this casing is a valve casing 40. v

A cylindrical valve 41 is mounted to rock within the valve casing 40 and this valve is formed with a radially extending nipple 42. An angular duet 41 extends from o'ne end of the valve 41 through the nipple 42, and this duct is in communication with an intake pipe 43, through which steam or other pressure fluid may be admitted to the valve. The valve is provided with a'stem 44. which extends beyond one end of the lvalve casing, and to the end of which is secured a crank 45, through which the valve may be rocked in any desired manner.

The casing 39 is provided with` ducts 46 which are adapted to register with the port of the nipple 42, alternately, when the valve be admitted between a baffle wall and a radial web and,by its expansion, will force the web 48; away from the baille wall 47 and cause the member 37 to rock.

' Integral with the member 37, and positioned beyond the inner side of the casing 39, is a sprocket wheel 49, over which passes a sprocket chain 50, which chain also engages a sprocket wheel 51, which is rigid on the shaft 30. It will thus be apparent that steam may be admitted to either duct 46 to'alternately rock the shaft 30 in one direction or the other.

After the member 37 and the shaft 30 have been rocked in one direction, the parts are restored to their normal positions by means ofa spring 52, one end of Which is riveted or otherwise secured to the casing 39, while l the other end is bent or hooked to engage a pin or stud 53 which projects from one face of the rockable member 37. An opposed similar spring 52 restores the parts to normal position when the parts have been j y rocked in an opposite direction. v

When the steam is cut 0E by rocking the valve 41 to mid position, exhaust takes place through an exhaust pipe 54, which is in communication `with the interior of the valve casing.v

The structure as shown is of the double drum type, the drum 23, with its brake drum 24, brake strap 25, and friction control yoke 33 being duplicated. Instead of a duplicate spur gear wheel 21, a friction disk 21 is rigid on the shaft 22 and against this disk the drum 23 is forced.

The cam 29 whichv controls the duplicate brake band 25 is disposed oppositely' to the cam 29, so that lwhen the cam 29 is rocked to tighten its brake' band 25, the cam 29 is rocked to loosen its brake band 25, and vice versa. The cam 35 is also set oppositely to the cam 35, and releases its friction yoke when the cam 35 is thrown to bring its friction yoke into operation, and vice versa.

Mounted on the 'frame 10, and preferably between the spur gear wheel 21 andthe friction disk 21, is a train of gears which consists ofa spur gear 55 and a pinion 56 which are r1g1d on a shaft journaled in the frame 1Q; a spur gear 57 adapted to mesh with the pinion 56, 'and a pinion 58 meshing with the spur gear 55 and both rigid on a shaft journaled in the frame 10. The pinion 58 meshes with a spur gear 59 which is rigid on the shaft 22.

When, the lpinions 18 and 19 are moved longitudinally of the shaft 11, as hereinbefore described,'the pinion 18 is thrown out of gear with the wheel 21, and the pinion 19 is thrown into gear with the spur gear 55, so that the shaft 22 is driven through the gear train just described.

Having thus described the invention, what is claimed as new and sought by Letters Patent is:-

l. The combination with a frame, a shaft rotatable in the frame, a friction disk rigid on the shaft, and a drum on the shaft and movable into engagement with the friction disk, of an element on the shaft and movable into contact with the drum to foree the same into engagement with 'the friction disk, a yoke embracing the element and movable to foroe'the element against the drum, a cam Y for moving the yoke, and fluid pressure controlled means for rocking the cam.

2. The combination .with a frame, a drum rotatable in the frame, elements for throwing the'drum in and out of gear, and elements for braking the drum, of a rock shaft mounted in the frame, cams rigid on the rock shaft and engaging a drum throwing element and a bra ng elementrespectively, a i

rockable member geared to the rock shaft, a

easing housing the rockable member, and

means for admitting pressure fluid to the' casing to selectively rock the rockable member in one direction or the reverse.

3. The combination with a frame, a shaft rotatable in the frame, al friction-disk rigid onthe shaft, and a drum on the shaft and movable into engagement with the' friction disk, of an elementen the shaft and movable into contact rwith the d'um to force the same linto vengagement with the friction disk, a

as my own, I have hereto aiixed my signature in the presence of two witnesses.- i 4 ILION ILIEFF; Witnesses:

WM. N. RoAoH, Jr., Ivy E. SIMPSON. 

